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Severity: LowFord

P2195 on Ford Vehicles

The front O2 or air-fuel sensor keeps reading lean while the rear sensor shows the engine isn't lean. P2195 →

5Complaints mentioning the code
#1Rank among 3 brands
0.2%Share of Ford DTC complaints

In NHTSA owner complaints we analyzed for Ford, P2195 was mentioned 5 times.

Notes by brand

Ford's 4.6 and 5.4 modular V8s are known for broken exhaust manifold studs. The resulting leak lets air reach the upstream sensor and can set lean-bias codes; a tick on cold start that fades as the engine warms is the classic clue.

Most mentioned models

Ford Edge2
Ford Focus Bev2
Ford Ranger1

Model years mentioned

Model years mentioned – Ford P2195107111113115116
2007: 1 · 2011: 1 · 2013: 1 · 2015: 1 · 2016: 1

Components named in these complaints

  • Service Brakes (3)
  • Fuel/propulsion System (2)
  • Hydraulic (1)
  • Engine And Engine Cooling (1)
  • Engine (1)

Often appears together with

P2197 Powertrain The upstream sensor on the bank without cylinder 1 reads lean while the other checks say that… Low P0507 Powertrain The engine idles faster than the computer's target – most often extra air is sneaking… Low

Possible causes

  1. Upstream air-fuel or O2 sensor aged or contaminated, output shifted lean30%
  2. Exhaust leak ahead of the sensor: manifold gasket, cracked manifold, broken studs, loose flange24%
  3. Real lean condition (vacuum leak, low fuel pressure) that the sensor reports correctly16%
  4. Corroded or high-resistance sensor wiring or connector, harness damaged by exhaust heat13%

P2195: Diagnosis step by step →

Related codes

FordFuel & Air MeteringCheck engine light onPoor fuel economy

Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.